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| Registros recuperados : 1.642 | |
| Registros recuperados : 1.642 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Unidades Centrais. |
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Data corrente: |
26/03/2008 |
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Data da última atualização: |
15/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
MORAIS, P. L. D. de; LIMA, L. C. de O.; MIRANDA, M. R. A. de; ALVES, J. D.; ALVES, R. E.; SILVA, J. D. |
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Afiliação: |
Patricia Ligia Dantas de Morais, UFRSA; Luiz Carlos de Oliveira Lima, UFL; Maria Raquel Alcantara de Miranda, UFC; José Donizete Alves, UFC; Ricardo Elesbão Alves, CNPAT; José Daniel Silva, UFC. |
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Título: |
Enzyme activities and pectin breakdown of sapodilla submitted to 1-methylcyclopropene. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v.43, n.1, p.15-20, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to investigate the influence of 1-methylcyclopropene (1-MCP) at 300 nL L-1 on activities of cell wall hidrolytic enzymes and pectin breakdown changes which Sapodilla (Manilkara zapota cv. Itapirema 31) cell wall undergoes during ripening. Sapodilla were treated with ethylene antagonist 1-MCP at 300 nL L-1 for 12 hours and then, stored under a modified atmosphere at 25ºC for 23 days. Firmness, total and soluble pectin and cell wall enzymes were monitored during storage. 1-MCP at 300 nL L-1 for 12 hours delayed significantly softening of sapodilla for 11 days at 25ºC. 1-MCP postharvest treatment affected the activities of cell wall degrading enzymes pectinmethylesterase and polygalacturonase and completely suppressed increases in beta-galactosidase for 8 days, resulting in less pectin solubilization. Beta-galactosidase seems relevant to softening of sapodilla and is probably responsible for modification of both pectin and xyloglucan-cellulose microfibril network. |
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Palavras-Chave: |
amadurecimento. |
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Thesagro: |
Sapoti. |
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Thesaurus NAL: |
beta-galactosidase; Manilkara zapota; ripening. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/41978/1/43n01a03.pdf
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Marc: |
LEADER 01689naa a2200241 a 4500
001 1427456
005 2018-06-15
008 2008 bl uuuu u00u1 u #d
100 1 $aMORAIS, P. L. D. de
245 $aEnzyme activities and pectin breakdown of sapodilla submitted to 1-methylcyclopropene.
260 $c2008
520 $aThe objective of this work was to investigate the influence of 1-methylcyclopropene (1-MCP) at 300 nL L-1 on activities of cell wall hidrolytic enzymes and pectin breakdown changes which Sapodilla (Manilkara zapota cv. Itapirema 31) cell wall undergoes during ripening. Sapodilla were treated with ethylene antagonist 1-MCP at 300 nL L-1 for 12 hours and then, stored under a modified atmosphere at 25ºC for 23 days. Firmness, total and soluble pectin and cell wall enzymes were monitored during storage. 1-MCP at 300 nL L-1 for 12 hours delayed significantly softening of sapodilla for 11 days at 25ºC. 1-MCP postharvest treatment affected the activities of cell wall degrading enzymes pectinmethylesterase and polygalacturonase and completely suppressed increases in beta-galactosidase for 8 days, resulting in less pectin solubilization. Beta-galactosidase seems relevant to softening of sapodilla and is probably responsible for modification of both pectin and xyloglucan-cellulose microfibril network.
650 $abeta-galactosidase
650 $aManilkara zapota
650 $aripening
650 $aSapoti
653 $aamadurecimento
700 1 $aLIMA, L. C. de O.
700 1 $aMIRANDA, M. R. A. de
700 1 $aALVES, J. D.
700 1 $aALVES, R. E.
700 1 $aSILVA, J. D.
773 $tPesquisa Agropecuária Brasileira$gv.43, n.1, p.15-20, 2008.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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